Improved reversible but



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FORNIA.

JEFFERSON KINDLEBERGER AND WILLIAM AUGUSTUS ARNOLD, OF SAN FRAN- CISCO, ASSIGNORS TO THE INVENTORS ASSOOIATIO Letters Patent No. 94,756, dated September 14, 1869.

IMPROVED REVERSIBLE BUT.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern Be it known that we, JEFFERSON KINDLEBERGER and WILLIAM AUGUSTUS ARNOLD, of the city and county of San Francisco, State of California, have invented an Improved Reversible 'Loose-Joint Door- But; and we do hereby declare the following description and accompanying drawings are sulicient to enable any person skilled in4 the art or science to which it most nearly appertains, to make and use oursaid invention or improvements, without further invention or experiment.

The nature of our invention consists in the arrangement of a detachable washer, and, in combination with it, of two pintles, as hereinafter described.

The following description, in which we refer to the accompanying drawings, forming a part of this' speciication, fully describes our invention, its manuel' of construction, and operation.

In the drawings- Figure l is a view of a pair of huts, having one leaf secured to a piece of wood.

Figure 2 shows aback view of one ofthe buts, the leaves partly closed.

Figure 3 is a sectional view, taken through :c x.

Figures 4, 5, and 6 are detail views.

Like letters indicate identical parts wherever they occur in each ofthe drawings.

A is a piece of wood, to which the buts arerepref sented as secured.

The leaf B, shown at fig. 6, is constructed similar to the leaves of any ofthe ordinary door-buts, having the cylindrical lug a extending Vfrom one end to near i the middle of the leaf.

A stationary pintlc, b, projects upward from the upper end of the lug a.

The leaf O is provided with a lug, (l, which is inade inthe form of anellipse, and which also extends to near the middle of the leaf.

This lug is attached to 4the leaf in such a manner, that if the leaf were extended sidewise it would cut the ellipse through` the middle, longitudinally, and is provided with two holes or sockets, one on each end of the ellipse, and each extending the entire length of the lug, as shown at lig. 4.

As before stated, the two lugs d and .d do not meet in the middle of the but, and iu order to fill up this space, I use an elliptical washer, D, having a semicircular projection, f, which ts around the cylindrical lug a on the leaf B, thus giving to the lug a an elliptical form also, when the washer is in place.

rlhe elliptical washer is provided with a hole at one end of the ellipse, and a short pintle, c, at the opposite end, so that by entering the pintle b of the leaf B in the hole in the washer, and slipping the washer down upon the cylindrical lug a, a suicient addition is made to the lug to give it the same form as the lug l on the leaf O, the washer turning upon the pintle b.

By litting the leaf .O with leaf B, so that its two holes or sockets will receive the two pintles l) and c, the but is put together in working-condition.

When thus put together, the loaf O and washer D, with its projection f, turn upon the pintle b and around the cylindricallug a ofthe leaf B.

To change the but so as to cause it to open in a direction contrary to that in which it is set, or, in other words, to change it from a right to a left-hand but, it is only necessary to remove the leaf G .and change the position of the pintles, so that the short pintle will enter the hole in the lug d from which Jdie long one was removed, and the long pintlc will enter the hole from which the short one was removed, thus completely converting it into a but opening in an opposite direction.

The screw-holes in the leaf O are countersunk on both sides, in order to allow the screw to be inserted from either side, as the position of the but requires.

By this means we are enabled to construct a doorbut or hinge which possesses greater strength than the ordinary but, while it is much more convenient.v

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

l. The elliptic washer D, with its semicircular projection, j, and supplemental pintle c, substantially as and for the purpose herein described.

2. Revcrsinga door-but or hinge so that it will open from either side, by means of a stationary and a movable pintle entering two holes in an elliptical lug on the reversing-leaf, substantially as above specilied.

In witness whereof, we have hereunto setour hands and seal.

JEFFERSON KINDLEBERGER. [n sa] VILLIAM AUGUSTUS ARNOLD. itnessesz A. M. 'INN,

J. L. BOONE.

N` OF SAN FRANCISCO, CALI- 

